Automatic film feed mechanism



Nov. 22, 1932. w. A. KOSKEN AUTOMATIC FILM FEED MECHANISM Filed Nov. 21, 1929 IN V EN TOR.

Mule 6. 425mm ATTORN Y once STATES PATENT OFFICE WILHO A. KGSKEN, 0F RICHMOND HILL, NEW YORK, ASSIGHOB TO 'WIIIHQ A. KOSIEH INQ, A. CURIPORATION OF NEW Yfili'fi AUEQE'IATI-U FEED Application flied Etiovemhe: Q1, 1925. Serial No, $033122 broken, is my path to prevent the igniting sci iii-.c; and the object of the invention is to ovide o mechanism of the ciess end the purpose specified with means for rendering said mechanism normally operative "whereby the event of o hrs .11 the film especially at s, point sdjecent the transmission of the light rays theiethrough, said mechanism may he put into operation to Withdraw or. remove the film item the my path; o further object being to provide at mechanism the class specified which is opeteted by it correct of air under piedeter mined pressure, the source of the sir supply being roduced by a blower or compressor in operative connection with the machine or the film actuating means of the machine, the control. of the direction of the air current to said iiim operatic mechanism being governed by e. member normally supported in inoperative position by its engagement with the film, whereby when s. break occurs in the film said member is moved into operative position; a stili further object heing to provide in conjunction with said film operating mechanism, 00 means whereby on electric motor or other power sonrcce employed for operating the like end the several parts of the machine may be stopped after the film has been removed AIOIH the my pethgend with these and other ohjects in view, the invention consists in a mechanism i the class and ion the purpose specified "which is simple in construction, ofiicient use end which is constructed as heteineiter described and claimed, invention shown described herein includes matter forming t e subject oi compenion cippiicotions Seriol lilo. 408 716, filed Noveinher ill 1929 and Serial. lion 403318 tiled November 21, 1929, and is fully dis-= closed iii the following specification. of which the accompanying drewing forms at part which the separate parts of my improvement ere designated by suitehie reference chat cc tors in each of the views, and in which Fig 1 is diagrammatic, sectional view of part of it moving picture projecting chine, showing "hnproved EHEE- sinsno u plied thereto.

hi 2 is o sectional olcn of port oi the construction shown. in

3 is vertical sectional view pettielly on the line oii end ig. is o osi'tiel section on 1 The invention herein disclosed relates oci mariiy to the automatic film teed mechenism disclosed in he companion application here in referred to and in combination therewith the means for stopping the machine o e-ere tion. In the accompanying droning" ii hove diagrammatically illustrated only such pests of the machine in connection with which this mechanism operates, it being understood my invention is not necessecii; incited to soy particuisr type of machine. lncarr ving my invention into eflect, E em ploy a power eiement for ectnsting my iinproved mechanism and in the present case I have utilized air as such an element, in Fig:

l of the drawing, It hove shown 10 t of a blower oc sir'compi'essor ori'enged in a suitable casing or housing 11 end the shaft ion has e gear 13 which meshes 12 of with a corresponding gear on esheft which is in ooerative connection with end driven from the electric motor or other power source employed in the machine, The sin from the ion 10 under predetermined poss sure is discharged through a passage 18 "which is flared end contracted ct one end as seen at 1% note Figs. 1 and 2 end is disci'ierged into the apparatus through discharge sage in operative connection with the motor or other power source i which meshes with a gear 20011 which is o film drive sprocket 531 the film 2% around on idler around e sprocket 54 i arranged on sh said sprocket heing rotated in this eye The sprocket is disposed below on spaced eletion to the idler roller 23 so o relatively straight vertical portion 22a: of the iiim Wiii travel in a transvecse iine across the path of the re, s, indicated in dot and 1 v he Whic dash line at26, emanating from a suitable source oflight. Arranged at one side of the film and supported in the casing of the ma-- connection with the casing by a screw 29. A

spring 30 is employed to exert slight pressure upon the film to maintain the vertical portion 220; thereof in substantially taut condition for purposes later set out.

As clearly seen in Figs. 2 and 3 of the drawing, the sprocket 24 consists of two members disposed at opposite side edges of-the film so as to permit the transmission of the rays 26 onto the film between the separate sprocket parts. Secured to the shaft 25 at a point exposed to the discharge 17 or a nozzle port 31 adapted to register with said discharge, is a rotor or bucket wheel 32 and a similar wheel 33 having a similar exposure is freely rotatable on the shaft 25 and is provided outwardly of the casing with a gear or pinion 34 with which a rack rod 35 is adapted to operate, the rack portion of which is shown at 36, note Fig. 1 of the drawing.

The rod 35 is arranged to move vertically in a yoke-shaped portion 37 of the casing and coupled with the rod and insulated therefrom is a contact 38 which is adapted to be moved into engagement with a stationary contact 39 insulated from its support. When these contacts are brou ht into engagement, a circuit is adapted to be completed to actuate a device to stop the electric motor or to short circuit said electric motor to stop the machine. The particular manner of performing this operation on the completion of a circuit may be accomplished in many ways and forms no specific part of my invention.

Pivotally supported in the casing adjacent the shaft 25 as seen at 40 is .a lever 41, one end of which carries an anti-frictional roller 42 adapted to bear u on the relatively taut vertical portion 22a 0 the film to support the other end 43 of said lever normally in the full line position shown in Fig. 1 of the drawing. This end portion functions as a valve or air deflector, and when in the full line osition, serves to direct the air-discharge rom the passage 16 through the reduced end 17 out of the discharge 18 and to close the communication with the nozzle discharge 31; whereas, when the lever 41 drops into the dotted line ."position on the breaking of the film, communication between the reduced end 17 and discharge 18'is closed, and the air is deflected in the nozzle discharge 31 and onto the rotors 32and 33 causing said rotors to be actuated in an anticlockwise direction, the result of which will cause a broken portion of the film, "positioned between the sprockets 21 and 24 to bafedbackwardly or reversely and removed from the path of the ray- 26, thus preventing the ignition of the film.

In the same operation, the rotation of the rotor 33 will feed the rod 35 upwardly and after all of the film has been removed from the ray path, the contact 38 will be brought into engagement with the contact 39 to stop the operation'of the machine. In connection with the foregoing brief description of the operation, it willbe apparent that the friction or tension plate 28 serves to maintain the vertical portion 22a of the film in a relatively taut state in orderto support the lever 41, which constitutes a control member, in its full line position. I

It will also be understood that during the successful operation of the machine, the sprocket 24 as well as the rotor 32 are being constantly rotated whereas the rotor 33 remains stationary. In the particular type of machine which is diagrammatically illustrated, the rays of light from a suitable source after passing through thefilm are directed to one reflecting surface or prism 44: and reflected onto another reflector or prism 45 from which said rays are pro ected through suitable projec ing lenses onto a screen. As previously stated, however, it will be understood that my improved automatic film feed mechanism and stop mecha nism, may be applied to machines of any kind or class, the structure of the mechanism being modified to suit the articular apparatus in connection with whic it is cm loyed.-

Various changes in. and modi ication of the of the film through which the rays of light emanating from a source of supply are adapted to pass, of a reverse feed mechanism turned idly in the normal directional feed of the film and automatically put into operation in the event of a break in the film adjacent said section to remove the free severed end of the film from the ray path.

2. In a projecting machine of the class described, the combination with that section of the film through which the rays of light emanating from a source of supply are adapted to pass, of a film controlled member, a reverse feed mechanism turned idly in the normal directional feed of the film and automatically put into operation by said member in the event of a break in the film adjacent said section to remove the free severed end of the film from the ray path, said mechanism involving 'a pneumatically actuated member.

3. In a projecting machine of the class dcscribed, the combination with that section of the film through which the rays of light em- 1,sas,eso

to "orevent the transmission oi air to sm pneumatically sctuatecl member,

" 1 nroyecting machine of the class descrioeci, the combination with that section of the lm through which the rays oi light emfrom a source oi? supply are eclaptetl i e iiim controlled member, a rechenisin turned itlly in the norfeed; of the film anti eutomstio operation by seiri member in o hreelr n the iilro mlj scent seirl i more the severecl end-l oi the ray with, seirl mechanism insiiy sctueteci member, nernoer cooperating the thereby in posinissicn oi air to e member, anti e is for stopping so when the i'ilin ieens for 'fieerleniene V L l x r iight re source sriiecent m is is re machine, egin element wherehy in e t part thereof? nt pass, saici iosi io permit e reverse oiireci8 8i" x) ii respect ;o the path oi light on: e suitable source of iiiugeri nrl 'gecent that on the light reys 1e nlm as it is tee; the machine, end means whereby in reset of the film adjacent that part thereof irough which the rays of light pass, saicl .1 iemhenwiil'loe rotatecl in a reverse direction reversely feed the iilni and withdrew the same from the ray path, suirl last named means involving a control device normally supported in operative position by engageit with the film.

In a projecting machine, means for feedtil transversely with respect to the path of light rays emanating from a suitable source of illumination, a member arranged adjacent that part of the film through which the light rays pass ami rotated idly by the film as it is fed through the machine, means whereby in a break of the film adjacent that part thereof through which the rays of light pass, saiii member will be rotated in a. reverse direction to reversely fecal the 11m and Withdraw the same from the ray path, said last nameol means involving a control clevicc normally supported in operative position by engagement with the film, and means for remlering the film taut where seiri levies cooperates therewith.

8. in e orojecting niacin! means for feeding s iilin through the nieci n and in a plane transversely with respec o is path of light rays emen "from suitebie source 0 urination, s ineinher rengeci sciiecent that part of he film throng i which the light reys rotated irliy by the film as is eel is mecliine, "whereby through member to rein which Wi one cnrecgetieoiiecent engaging the i g retried; idiy in nrmsi f ed; of the 1.; n through the machine, anti means whereby in event of a break in said film, sairl member will be movecl into oosition to direct the cu rent air towsrri Tens tierice to put the same into operation to Eeec'i the broken portion of iiirn in s reverse direction.

10. in s moving picture projecting machine, e iilm feed mechanism for ieeriing the film through the light my path of the ma chine, means in operative connection with the power source of the machine for creating and transmitting air under pressure through a retietermin-ecl path, a control member adyacent that part of the film through which the light rays pass and supported by the film to normally direct'the current of air 1n one iii fall ' reotion, reverse named rotor and direction, a reverse drive device arranged adjacent aid member and operatively engaging the film, said device being rotated idly in the normal feed of the film through the macl no, means whereby in the event of a, break in said film, said member will be moved into position to direct the current of air toward said device to put the some into operation to feed the broken portion of the film in a, reverse direction, soid device being arranged adjacent that port of the film through which the rays of light pass and said device involving a sprocket engaging the film, and a rotor operated by the current of air.

ll. in a moving picture projecting incchine, e ieeo mechanism for feeding the through the light ray path of the mm chine, means in operative connection with the power source of the machine for erecting and transmitting air under pressure through c predetermined path, a control inemher adjacent that port of the film through which the light rays pass and supported by the film to normally direct the current of eir in one dirive device arranged edjacen i' ineinloi and operetively engaging the film, scic device being idly in the IlOTi cl of the film through the machine, means whereby in event of a break in said into position to direct the current of sir to- Werd said device out the into tion to feed the broken portion the film in a reverse direction, said device being adjacent port of the lilm through which the ro s pass and said device involving sprocket the film end a rotor operated by the current air, and another rotor edjscent said first independently operated the current air, and means operstive engagement with the second named rot-ori or automatically stopping the operation of machine- 12. In moving picture projecting mochines, the combination with the film feed mechanism of the machine and the film setueted therehy, of an automatically actuated device for feeding a portion of the film in a reverse direction, said device being positionecl adjacent that port of the film through which the rays of light pass and idly turned by the film in the normal feed thereof, means controlled by engagement with the film for controlling the operation of said device.

13. In moving picture projecting ma.- chines, the combination with the film feed mechanism of the machine and the film actuated thereby, of an automatically actuated device for feeding a portion of the film in a reverse direction, said device being positioned adjacent that part of the film through which the rays of light pass and idly turned by the m in the normal feed thereof, means cons oiled by engagement with the film for confilm, said member will be moved trolling the operation of said device, and

means in operative engagement with the power source of the machine for supplying air under pressure to actuate said reverse feed device.

14. In moving picture projecting machines, the combination with the film feed mechanism of the machine and the film actuoted thereby, of an automatically actuated device for feeding a portion of the in a reverse direction, said device being positioned adjacent that port of the Elm through the rays of light pass and idly turned lay the film in the normal roof, means controlled lay engagement with the ii vi for controlling lie operation of said device, means in operative engagement e power sonrce of the machine for supplying c'r under pressure to actuate said reverse device, said feed device inelnding means for stopping the machine operation when a predetermined i files Til-E83 reversel f I I J v n machine or the y b Il' 51011 with se it .1." T 7 2 i oithe film tnrougn wnicli the revs ()1 emanating from a scarce supply adopted to pas of o iilrn controller- :ieniher, he

ember sa d section to remove oi- :dlm from the my; se' involving a pneumatically act-noted rel-Linen semi niernher controlling sir snpyly o element 16. Zn projecting machines of the do or bed, a film iced meclienism involving feed Arlee-ins ands, member rotated in one direction by the iilrn fee through the machine, and means involving a control ele c operatsloly engaging the whereby o reel: in film at at point adjacent said member and elementwill cause sold element to he moved into position to permit the reverse drive of seid member, and cases the reverse feed of the broken end or the 1?. In projecting machines of the close described, s film feed mechanism involving feed means and is member rotated in one direction by the film fed through the machine, means the foregoing as I have signedmy name this ay of November l929."

WILHO rLKOSKEN. v

involving a control. element operetebly en- 

